This paper presents an architectural design of elastic service frameworks based on OSGi service platforms. Load-balancing and auto-scaling features, among others, are considered as the most essential to enabling the elasticity of cloud services. Our proposal extends OSGi Remote Service Admin Specification to add load balancing capability, so that service developers can use it as a system service, i.e., without knowing the internal details. The proposed approach is validated through a proof-of-concept prototype implementation and evaluation. © 2015 IEEE.